(210d) A New Model for the Depolymerisation of Polysaccharides Originating from Biomass
A new theoretical model for the depolymerisation kinetics of polysaccharides in batch and continuous reactors was developed. The main idea of the model is that the depolymerisation reactivities of the polymer bonds depend parabolically on the distance of the bonds from the central bond in the polysaccharide polymer. The model is able to describe the self-acceleration of the depolymerisation process as the polymer chains become shorter. A software was developed to be able to calculate the product distribution for an arbitrary mixture of initial polymers. The model was successfully tested on existing experimental depolymerisation data of O-acetylgalactoglucomannan, a hemicellulose appearing in softwood.